Find a builder to make your building structurally sound

RSJs support your new extension or other construction to ensure that your property is structurally sound. They are crucial parts of your building work that mustn't be ignored, and must be installed by a professional.  To see prices and availability for your job click green button.

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From £2,248

Last active Nov 26
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A&D Builders

Trusted and professional extension builder in West Midlands. Experienced in all extension buildering work and keeping within budget and on quote. A...

From £1,912

Last active Nov 26
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Oakham Brickwork

Oakham Brickwork is an established extension buildering business in West Midlands. We come highly recommended and provide competitive quotes for yo...

From £1,768

Last active Nov 26
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ARGENT BUILDERS LTD

Trusted and professional extension builder in West Midlands. Experienced in all extension buildering work and keeping within budget and on quote. A...

From £2,216

Last active Nov 26
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Amos Building Services Ltd

Trusted and professional extension builder in West Midlands. Experienced in all extension buildering work and keeping within budget and on quote. A...

From £1,880

Last active Nov 26
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K Barrett Roofing LTD

Experienced extension builder ready to quote for your work. K Barrett Roofing LTD is the best extension builder in West Midlands. No obligation fre...

From £2,184

Last active Oct 26
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Have Faith Plasterers

Have Faith Plasterers is an established and experienced local extension builder in West Midlands. Please contact us for a free, no obligation quote...

From £2,144

Last active Oct 26
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D&J Advanced Builders

Need an Extension Builder in West Midlands? D&J Advanced Builders has been helping local clients (20 mile radius) with their extension buildering j...

From £2,040

Last active Oct 26
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MD Services

Relax... you have found a reliable extension builder in West Midlands. MD Services is a friendly and reliable company based in West Midlands who co...

From £1,768

Last active Oct 26
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Dave Mattock

Dave Mattock is an established and experienced local extension builder in West Midlands. Please contact us for a free, no obligation quote and comp...

From £1,800

Last active Oct 26
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D Broomhall

Need to find an Extension Builder near you for all your extension buildering work?

D Broomhall provides a local, trusted extension builderi...

RSJ cost in West Midlands

Estimates for install an rsj near West Midlands

How much RSJs cost for supply and installation varies depending on the size, type and load-bearing properties, but in West Midlands it ranges from £1,768 (ARGENT BUILDERS LTD based in B64) to £2,248 (A&D Builders based in B64).

Comparing extension builders estimates for fitting an RSJ gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.

Get rates and quotes to install an RSJ in West Midlands by posting a job with HaMuch and we will send it to extension builders in West Midlands.

"Removal of 3 walls and 3 RSJ installations to extend a kitchen. Need for a structual engineering consultation and building control approval since at least one wall will be load bearing." - BIRMINGHAM, job posted 05/05/24

"RSJ installation" - BIRMINGHAM, job posted 01/03/25


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Estimates for common extension builder jobs in West Midlands;

Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

More extensions & conversions cost guides...